/*
 * Copyright (c) 2021 Eshel.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package demo.java.asm.printer;

import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

/**
 * <br>createBy Gw
 * <br>createTime: 2021/6/23 17:51
 */
public class ClassPrinter extends ClassVisitor {

	public ClassPrinter() {
		super(Opcodes.ASM4);
	}

	@Override
	public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
		super.visit(version, access, name, signature, superName, interfaces);

		System.out.println(name + " extends " + superName + "{");
	}

	@Override
	public void visitOuterClass(String owner, String name, String descriptor) {
		super.visitOuterClass(owner, name, descriptor);
	}

	@Override
	public AnnotationVisitor visitAnnotation(String descriptor, boolean visible) {
		return super.visitAnnotation(descriptor, visible);
	}

	@Override
	public FieldVisitor visitField(int access, String name, String descriptor, String signature, Object value) {
		System.out.println("    " + descriptor + " " + name);
		return super.visitField(access, name, descriptor, signature, value);
	}

	@Override
	public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
		System.out.println("\t" + name + descriptor);
		return super.visitMethod(access, name, descriptor, signature, exceptions);
	}

	@Override
	public void visitEnd() {
		super.visitEnd();
		System.out.println("}");
	}
}